Rubber member hot melt type breaking and recycling device

Abstract

This invention discloses a rubber component hot-melt crushing and recycling device. The crushing chamber includes two linked crushing shafts. The crushing shafts have internal cavities, and nozzles communicating with these cavities are located on their outer walls. The hot-melt chamber includes a first contraction section and a discharge section. A sleeve is rotatably mounted on the radial outer wall of the discharge section. Multiple slots are formed on the radial outer wall of the discharge section, and multiple discharge ports are formed on its axial outer wall. When the sleeve rotates relative to the discharge section, a scraper cuts the molten rubber at the discharge ports. The sleeve scrapes the radial inner wall of the discharge section to prevent the molten rubber from adhering and accumulating. This invention solves the problem of rubber debris adhering to the crushing rollers through the air-blowing structure of the internal cavity of the crushing shaft and the nozzles, improving crushing efficiency and continuity. The combination of the discharge section with the rotating sleeve and scraper structure allows for uniform cutting of the molten rubber and real-time scraping of materials adhering to the inner wall, improving discharge smoothness and efficiency.

Description

Technical Field

[0001] This invention relates to the field of resource recycling technology, specifically to a rubber component hot-melt crushing and recycling device. Background Technology

[0002] Early natural rubber primarily came from the latex secreted by rubber trees and rubber grasses. After a series of processing steps including collection, coagulation, drying, and plasticizing, it was made into a functional material with good elasticity, excellent insulation, and impermeability to water and air, widely used in industrial production and daily life. In the actual production process of various rubber products, due to processes such as cutting, molding, vulcanization, and trimming, scraps, substandard semi-finished products, and waste products are inevitably generated. However, these rubber wastes are not waste materials, but rather renewable resources with high utilization value. To achieve resource recycling, reduce raw material procurement costs, and reduce environmental pollution, the industry typically classifies, cleans, crushes, and grinds this waste rubber into rubber powder or reclaimed rubber, which is then reused in the production of rubber products, thus forming a closed loop of resource recycling and reuse.

[0003] Chinese patent application CN118789702A discloses a rubber hot-melt vulcanization granulation device, applied in the field of rubber granulation technology. This invention includes an extrusion mechanism comprising an extrusion shell. A support is fixedly installed at the bottom of the extrusion shell, and a feeding mechanism is fixedly installed at the top of the extrusion shell. During rubber granulation, crosslinking aids such as vulcanizing agents and accelerators are fed into the feeding shell along with large pieces of raw rubber. A pressure plate then compresses the large pieces of rubber, increasing the pressure during feeding and thus improving feeding efficiency. The pressure plate is also easily adjustable; its height can be adjusted according to the volume of the rubber during the uniform movement of the plate. This design improves the feeding efficiency of the granulation device while replacing manual pressing and reducing safety hazards. The fed rubber and additives are then extruded and pelletized by the extrusion mechanism.

[0004] However, the crushing efficiency of the rubber hot melt recycling device disclosed above is generally low. Rubber debris tends to adhere to the crushing roller, affecting the subsequent crushing effect. Furthermore, during the hot melt discharge process, the molten rubber adheres to the inner wall, affecting the subsequent discharge efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the problems of the generally low crushing efficiency of existing rubber hot-melt recycling devices, the easy adhesion of rubber fragments to the crushing rollers, which affects the subsequent crushing effect, and the adhesion of molten rubber to the inner wall during the hot-melt discharge process, which affects the subsequent discharge efficiency. This invention provides a rubber component hot-melt crushing and recycling device.

[0006] To achieve the above objectives, the technical solution of the present invention is: a rubber component hot-melt crushing and recycling device, comprising:

[0007] The pulverizing chamber includes two pulverizing shafts that work together in a linkage; the pulverizing shafts have cavities inside, and nozzles communicating with the cavities are opened on the outer walls of the pulverizing shafts;

[0008] A hot melt chamber, located at the discharge end of the crushing chamber, includes a first contraction section and a discharge section; a sleeve is rotatably mounted on the radial outer wall of the discharge section; multiple slots are formed on the radial outer wall of the discharge section, and multiple discharge ports are formed on the axial outer wall of the discharge section; a scraper is mounted on the sleeve, and when the sleeve rotates relative to the discharge section, the scraper cuts the molten rubber at the discharge port; the sleeve scrapes the radial inner wall of the discharge section to prevent the molten rubber from sticking and accumulating.

[0009] As a further embodiment of the present invention: gears are installed on the crushing shafts, and two gears mesh with each other; blades are provided on both crushing shafts to cut the rubber raw materials.

[0010] As a further embodiment of the present invention: the discharge end of the crushing chamber is rotatably provided with a feeding shaft, and a plurality of feeding grooves are spaced apart on the radial outer wall of the feeding shaft to achieve uniform feeding into the hot melt chamber.

[0011] As a further embodiment of the present invention: the crushing chamber further includes a belt; the belt is connected to the feeding shaft and one of the crushing shafts; the crushing chamber further includes a control panel.

[0012] As a further embodiment of the present invention: the discharge section is provided with an installation groove, the sleeve includes an installation rail, and the sleeve is rotatably disposed in the installation groove via the installation rail; a gear ring is provided on the outer wall of the sleeve, and the hot melt chamber also includes a drive source, the output end of the drive source being connected to the gear ring for transmission.

[0013] As a further embodiment of the present invention: the hot melt chamber includes a motor, and the output end of the motor is provided with a spiral shaft; the spiral shaft includes a second shrinkage part, which is provided correspondingly to the first shrinkage part and is used to shape molten rubber.

[0014] As a further embodiment of the present invention: the recycling device further includes a gas conveying device; the gas outlet of the gas conveying device is located at the crushing shaft and the discharge section to realize the blowing of the crushed rubber particles and the cooling of the molten rubber when it is cut and molded.

[0015] As a further embodiment of the present invention: the gas conveying device includes a first conveying pipe; the output end of the first conveying pipe is disposed in the cavity.

[0016] As a further embodiment of the present invention: the gas conveying device includes a second conveying pipe, and an outlet ring cover is provided at the output end of the second conveying pipe; an inlet ring cover is fixedly provided on the outer wall of the sleeve, and a plurality of outlet nozzles are provided at the outlet end of the inlet ring cover; the outlet ends of the plurality of outlet nozzles face the discharge port; the inlet end of the inlet ring cover is rotatably disposed at the outlet end of the outlet ring cover.

[0017] As a further embodiment of the present invention: the air inlet ring cover and the air outlet ring cover are configured as an annular chamber structure; the air inlet ring cover includes a first limiting part and a second limiting part; the radial outer wall of the air outlet ring cover is respectively rotatably disposed within the first limiting part and the second limiting part to improve the airtightness.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention effectively solves the problem of rubber debris adhering to the crushing roller through the air-blowing structure of the internal cavity of the crushing shaft and the nozzle, significantly improving crushing efficiency and continuity. The discharge section, combined with a rotating sleeve and scraper structure, can uniformly cut the molten rubber and scrape away adhering material from the inner wall in real time, preventing molten rubber from clogging the discharge channel and greatly improving discharge smoothness and efficiency. The overall structure of this application achieves integrated and coordinated operation of crushing, melting, discharge, and cleaning, reducing equipment failure and maintenance frequency, improving the stability, automation, and resource utilization of the entire rubber recycling process, and reducing production costs and energy consumption. Attached Figure Description

[0020] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the pulverizing chamber in this invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the internal structure of the crushing chamber in this invention;

[0024] Figure 4 This is the three-dimensional structure of the hot melt chamber in this invention. Figure 1 ;

[0025] Figure 5 This is the three-dimensional structure of the hot melt chamber in this invention. Figure 2 ;

[0026] Figure 6 yes Figure 5 Enlarged view of the structure at point A in the middle;

[0027] Figure 7This is a three-dimensional structural diagram of the helical shaft in this invention;

[0028] Figure 8 This is a three-dimensional structural diagram of the sleeve and gas conveying device in this invention;

[0029] Figure 9 This is a cross-sectional view of the sleeve in this invention;

[0030] Figure 10 This is a three-dimensional structural diagram of the gas transmission equipment in this invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Crushing chamber;

[0033] 101. Crushing shaft; 102. Cavity; 103. Nozzle; 104. Gear; 105. Feeding shaft; 106. Feeding chute; 107. Belt; 108. Control panel;

[0034] 2. Hot melt chamber;

[0035] 201. First contraction section; 202. Discharge section; 203. Motor; 204. Screw shaft; 205. Second contraction section; 206. Groove; 207. Discharge port; 208. Mounting groove; 209. Sleeve; 210. Mounting rail; 211. Gear ring; 212. Scraper; 213. Air inlet ring cover; 214. First limiting section; 215. Second limiting section; 216. Air outlet;

[0036] 3. Gas transmission equipment;

[0037] 301. First conveying pipe; 302. Second conveying pipe; 303. Exhaust ring cover. Detailed Implementation

[0038] The following will be combined with the appendix Figures 1 to 10 The technical solutions of the present invention have been clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] This invention provides an improved rubber component hot-melt crushing and recycling device, such as... Figures 1-10 As shown, including;

[0043] The pulverizing chamber 1 includes two pulverizing shafts 101 that are linked together; the pulverizing shaft 101 has a cavity 102 inside, and the outer wall of the pulverizing shaft 101 has a nozzle 103 that communicates with the cavity 102.

[0044] The hot melt chamber 2 is located at the discharge end of the crushing chamber 1 and includes a first shrinkage section 201 and a discharge section 202. A sleeve 209 is rotatably mounted on the radial outer wall of the discharge section 202. Multiple slots 206 are opened on the radial outer wall of the discharge section 202, and multiple discharge ports 207 are opened on the axial outer wall of the discharge section 202. A scraper 212 is provided on the sleeve 209. When the sleeve 209 rotates relative to the discharge section 202, the scraper 212 cuts the molten rubber at the discharge port 207. The sleeve 209 scrapes the radial inner wall of the discharge section 202 to prevent the molten rubber from sticking and accumulating.

[0045] The rubber component hot-melt crushing and recycling device mainly consists of a crushing chamber 1 and a hot-melt chamber 2. The crushing chamber 1 is equipped with two crushing shafts 101 that are linked together. The two crushing shafts 101 rotate relative to each other to crush the rubber. Each crushing shaft 101 has a cavity 102 inside. Multiple nozzles 103 connected to the cavity 102 are distributed on the outer wall of the crushing shaft 101.

[0046] The hot melt chamber 2 is located at the lower end of the discharge section of the crushing chamber 1. The upper part of the hot melt chamber 2 is provided with a first contraction section 201, and the lower part is the discharge section 202. The radial outer wall of the discharge section 202 is provided with a plurality of circumferentially distributed slots 206, and the axial outer wall is provided with a plurality of discharge ports 207 for discharging molten rubber. A sleeve 209 is rotatably installed on the radial outer wall of the discharge section 202, and a scraper 212 is provided on the inner side of the sleeve 209.

[0047] Two crushing shafts 101 operate in tandem to shear and crush the rubber components. Airflow can be introduced into the cavity 102 of the crushing shafts 101, and the airflow is ejected outward through the nozzle 103, blowing off rubber fragments adhering to the surface of the crushing shafts 101 during the crushing process, preventing fragment adhesion and affecting crushing efficiency. The crushed rubber particles enter the hot melt chamber 2 for heating and melting. The molten rubber converges through the first contraction section 201 to the discharge section 202 and is extruded outward from the discharge port 207.

[0048] The sleeve 209 rotates continuously relative to the discharge section 202, driving the scraper 212 to cut the molten rubber at the discharge port 207 to a fixed length, ensuring uniform and regular rubber discharge. At the same time, the inner wall of the sleeve 209 rotates tightly against the radial inner wall of the discharge section 202, continuously scraping the inner wall to promptly remove the molten rubber adhering to it, preventing rubber accumulation and blockage, and ensuring smooth and stable discharge.

[0049] See appendix Figure 1 and attached Figure 3 Gears 104 are installed on the crushing shaft 101, and the two gears 104 mesh with each other; blades are provided on both crushing shafts 101 to cut the rubber raw material.

[0050] In this embodiment: two crushing shafts 101 are respectively fixedly mounted with gears 104. The two gears 104 are the same size and mesh with each other to form a synchronous transmission structure.

[0051] Each crushing shaft 101 has multiple sets of blades arranged axially and circumferentially on its shaft body. The blades are fixedly connected to the crushing shaft and rotate synchronously with the shaft body. One crushing shaft 101 is driven to rotate by an external power source, and the power is transmitted through meshing gears 104, which drive the other crushing shaft 101 to rotate synchronously at the same speed but in the opposite direction.

[0052] The blades on the two crushing shafts 101 then form a shearing, tearing and crushing action in opposite directions, continuously cutting and crushing the rubber raw material entering the crushing chamber 1, so that large pieces of rubber are gradually cut into fragments that meet the requirements of subsequent hot melting, ensuring that the crushing operation is stable and efficient.

[0053] See appendix Figure 2 - Appendix Figure 3 The discharge end of the crushing chamber 1 is rotatably equipped with a feeding shaft 105. Multiple feeding grooves 106 are spaced apart on the radial outer wall of the feeding shaft 105 to achieve uniform feeding into the hot melt chamber 2.

[0054] In this embodiment, the feeding shaft 105 is rotatably installed at the discharge end of the crushing chamber 1. Its shaft body is adapted to the size of the discharge port of the crushing chamber 1 to ensure that there is no obvious gap or jamming during rotation.

[0055] On the radial outer wall of the feeding shaft 105, a plurality of feeding grooves 106 are evenly spaced along the circumference. The feeding grooves 106 have an arc-shaped groove structure. The depth and width of the groove are matched with the particle size of the crushed rubber fragments. The plurality of feeding grooves 106 are evenly distributed along the axial direction of the feeding shaft to ensure that the feeding amount is consistent in each revolution when the feeding shaft 105 rotates.

[0056] In this embodiment: the feeding shaft 105 is driven by an external power source and rotates at a constant speed around its own axis. The rubber fragments cut and crushed in the crushing chamber 1 will naturally fall into the feeding groove 106 of the feeding shaft 105. As the feeding shaft 105 continues to rotate, when the feeding groove 106 containing rubber fragments rotates to a position corresponding to the inlet of the hot melt chamber 2, the rubber fragments in the groove fall into the hot melt chamber 2 under the action of gravity. The feeding groove 106 that does not correspond to the inlet will be blocked by the inner wall of the discharge end of the crushing chamber 1 to prevent the fragments from falling out prematurely.

[0057] By rotating the feeding shaft 105 at a constant speed and distributing the feeding troughs 106 at intervals, the rubber scraps are continuously and uniformly fed from the crushing chamber 1 to the hot melt chamber 2. This prevents the material from accumulating in the hot melt chamber 2 and causing insufficient hot melting due to feeding too fast, and also avoids the crushing chamber 1 from being blocked due to feeding too slow, which would affect the overall operating efficiency.

[0058] See appendix Figure 1 - Appendix Figure 3 The crushing chamber 1 also includes a belt 107; the belt 107 is connected to the feeding shaft 105 and one of the crushing shafts 101; the crushing chamber 1 also includes a control panel 108.

[0059] In this embodiment: the crushing chamber 1 is also provided with a belt 107 and a control panel 108. The belt 107 is fitted to the pulley of the feeding shaft 105 and one of the crushing shafts 101 to form a linkage transmission structure, and the two realize power transmission through the belt 107.

[0060] The control panel 108 is fixedly installed on the outer wall of the crushing chamber 1 and is electrically connected to the power and actuation components of the device.

[0061] In this embodiment: the driving mechanism drives the crushing shaft 101 to rotate, and the crushing shaft 101 transmits power synchronously to the feeding shaft 105 through the belt 107, so that the crushing shaft 101 and the feeding shaft 105 keep working together, realizing the synchronous matching of crushing action and feeding action, without the need to add a separate feeding drive source, simplifying the structure and ensuring stable material conveying.

[0062] The control panel 108 is used to control the start and stop of the device, the operating speed and other operating parameters. It can adjust the working status of the crushing shaft 101 and the feeding shaft 105 in real time according to the characteristics of the rubber raw materials and the recycling conditions, so that the crushing, feeding and hot melting processes are more coordinated, and the stability and ease of operation of the device are improved.

[0063] See appendix Figure 5 - Appendix Figure 6 Appendix Figure 8 - Appendix Figure 9 The discharge section 202 is provided with an installation groove 208. The sleeve 209 includes an installation rail 210. The sleeve 209 is rotatably mounted in the installation groove 208 via the installation rail 210. A gear ring 211 is provided on the outer wall of the sleeve 209. The hot melt chamber 2 also includes a drive source. The output end of the drive source is connected to the gear ring 211 for transmission.

[0064] In this embodiment: an annular mounting groove 208 is provided on the outer wall of the discharge section 202, and an annular mounting rail 210 is provided on the inner wall of the sleeve 209. The sleeve 209 is rotatably mounted on the discharge section 202 through the cooperation of the mounting rail 210 and the mounting groove 208, so as to achieve circumferential rotation and axial positioning.

[0065] In this embodiment: a toothed ring 211 is fixedly provided on the outer wall of the sleeve 209, and the hot melt chamber 2 is equipped with a dedicated drive source. The output end of the drive source meshes with the toothed ring 211 to form a transmission cooperation.

[0066] When the drive source is powered on, it drives the sleeve 209 to rotate at a constant speed around the axis of the discharge section 202 through meshing with the gear ring 211. The mounting rail 210 rotates synchronously in the mounting groove 208, which not only provides stable support for the sleeve 209, but also restricts its axial movement, ensuring that the sleeve 209 rotates smoothly and reliably. This provides stable power for subsequent scraping and cutting of material by the scraper, realizing continuous cleaning and smooth discharge of molten rubber.

[0067] See appendix Figure 4 and attached Figure 7 The hot melt chamber 2 includes a motor 203, and the output end of the motor 203 is provided with a spiral shaft 204; the spiral shaft 204 includes a second shrinkage part 205, which is correspondingly provided with the first shrinkage part 201 and is used to shape molten rubber.

[0068] In this embodiment: the hot melt chamber 2 is equipped with a motor 203, the output end of the motor 203 is fixedly connected to the spiral shaft 204, the spiral shaft 204 is located inside the hot melt chamber 2, and the front end of the spiral shaft 204 is provided with a second contraction part 205. The second contraction part 205 corresponds to the first contraction part 201 of the hot melt chamber 2 in position and is adapted in shape, together forming a molding channel for molten rubber.

[0069] The motor 203 drives the spiral shaft 204 to rotate. The spiral shaft 204 conveys, stirs and assists in the hot melt of the rubber debris entering the hot melt chamber 2 through the spiral blades, so that the rubber is fully melted.

[0070] The molten rubber moves towards the first contraction section 201 under the push of the screw shaft 204. When it passes through the second contraction section 205 that cooperates with the first contraction section 201, it is compacted and shaped under the constraint and squeezing action of the contraction structure, realizing the regular molding and output of the molten rubber. At the same time, the screw conveyor ensures that the material continues to move forward and avoids the molten rubber from sticking and adhering in the bin.

[0071] See appendix Figure 4 and attached Figure 8 The recovery device also includes a gas conveying device 3; the gas outlet of the gas conveying device 3 is located at the crushing shaft 101 and the discharge section 202, so as to blow the crushed rubber particles and cool the molten rubber when cutting and molding.

[0072] In this embodiment: the recycling device is also provided with a gas supply device 3. The gas outlet of the gas supply device 3 is connected to the cavity 102 of the crushing shaft 101 and the discharge section 202 area respectively. The gas outlet is arranged inside the crushing shaft 101 and outside the discharge section 202 respectively, forming a gas supply structure that acts on the crushing station and the discharge forming station respectively.

[0073] When the air supply device 3 is working, it generates airflow. One airflow enters the cavity 102 of the crushing shaft 101 and is blown out from the nozzle 103. It blows the crushed rubber particles and blows off the rubber debris attached to the crushing shaft 101 and the blades, preventing the debris from sticking together and accumulating, and ensuring continuous and efficient crushing.

[0074] Another airflow is delivered to the discharge section 202, where it is cooled down during the process of the molten rubber being cut and shaped by the scraper 212. This reduces the viscosity of the molten rubber and decreases its adhesion to the discharge port 207 and the inner wall of the discharge section 202. At the same time, it helps to improve the cutting and shaping effect, making the discharge smoother and more stable.

[0075] See appendix Figure 4 Appendix Figure 8 - Appendix Figure 9 The gas transmission device 3 includes a first transmission pipe 301; the output end of the first transmission pipe 301 is located inside the cavity 102.

[0076] In this embodiment, the gas conveying device 3 includes a first conveying pipe 301, the output end of which extends and connects to the cavity 102 inside the crushing shaft 101, thereby realizing the stable delivery of airflow to the cavity 102.

[0077] The airflow generated by the air supply device 3 is continuously sent into the cavity 102 through the first delivery pipe 301, and then sprayed outward through the nozzle 103 on the outer wall of the crushing shaft 101, forming a continuous purging airflow to blow away the rubber debris that adheres to the crushing shaft 101 and the blades during the crushing process, so as to avoid the accumulation of debris affecting the crushing effect and ensure that the crushing operation is carried out continuously and stably.

[0078] See appendix Figure 8 - Appendix Figure 10 The gas conveying device 3 includes a second conveying pipe 302, and an outlet ring cover 303 is provided at the output end of the second conveying pipe 302; an inlet ring cover 213 is fixedly provided on the outer wall of the sleeve 209, and a plurality of outlet nozzles 216 are provided at the outlet end of the inlet ring cover 213; the outlet ends of the plurality of outlet nozzles 216 face the discharge port 207; the inlet end of the inlet ring cover 213 is rotatably located at the outlet end of the outlet ring cover 303.

[0079] In this embodiment: the gas conveying device 3 includes a second conveying pipe 302, and an outlet ring cover 303 is fixedly provided at the output end of the second conveying pipe 302.

[0080] An air inlet ring cover 213 is fixedly installed on the outer wall of the sleeve 209. The air inlet end of the air inlet ring cover 213 is rotatably fitted to the air outlet end of the air outlet ring cover 303, forming a relatively rotatable air passage connection structure. Multiple air outlets 216 are distributed on the air outlet end of the air inlet ring cover 213, and the air outlet end of each air outlet 216 faces the discharge port 207 of the discharge section 202.

[0081] In this embodiment: the cooling airflow output by the gas conveying device 3 is conveyed to the outlet ring cover 303 through the second conveying pipe 302, and then enters the inlet ring cover 213 that rotates with it. The airflow is blown directionally to the discharge port 207 through the outlet nozzle 216. When the sleeve 209 drives the scraper 212 to rotate and cut the molten rubber, the rotational cooperation between the outlet ring cover 303 and the inlet ring cover 213 does not affect the airflow delivery, and continuously cools the molten rubber at the discharge port 207, reducing the rubber viscosity. At the same time, it cooperates with the scraper 212 to cut and prevent the molten rubber from sticking to the discharge port 207, ensuring smooth discharge.

[0082] See appendix Figure 8 - Appendix Figure 10 The air intake ring cover 213 and the air outlet ring cover 303 are configured as annular compartment structures; the air intake ring cover 213 includes a first limiting part 214 and a second limiting part 215; the radial outer wall of the air outlet ring cover 303 is rotatably disposed within the first limiting part 214 and the second limiting part 215 respectively to improve the airtightness.

[0083] In this embodiment, both the intake ring cover 213 and the exhaust ring cover 303 adopt an annular chamber structure. The intake ring cover 213 is integrally provided with a first limiting part 214 and a second limiting part 215. The two limiting parts are distributed in annular step shape on the radial outer side of the exhaust ring cover 303. The radial outer wall of the exhaust ring cover 303 is rotatably fitted inside the first limiting part 214 and the second limiting part 215, respectively, forming a double-layer annular rotating sealing structure.

[0084] In this embodiment: the air outlet ring cover 303 remains fixed, and the air inlet ring cover 213 rotates synchronously with the sleeve 209. The first limiting part 214 and the second limiting part 215 form a radial wrapping and limiting on the air outlet ring cover 303, reducing the rotational fit clearance, improving the airtightness of the airflow channel, preventing the cooling airflow from leaking from the fit clearance, and ensuring that the airflow can be stably and concentratedly delivered from the air outlet 216 to the discharge port 207, thereby achieving efficient cooling and anti-sticking effects on the molten rubber.

[0085] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A rubber component hot-melt crushing and recycling device, characterized in that, include: The grinding chamber (1) includes two grinding shafts (101) that are linked together; the grinding shaft (101) has a cavity (102) inside, and the outer wall of the grinding shaft (101) has a nozzle (103) that communicates with the cavity (102). A hot melt chamber (2) is disposed at the discharge end of the crushing chamber (1), including a first shrinkage part (201) and a discharge part (202); a sleeve (209) is rotatably disposed on the radial outer wall of the discharge part (202); a plurality of slots (206) are opened on the radial outer wall of the discharge part (202), and a plurality of discharge ports (207) are opened on the axial outer wall of the discharge part (202). The sleeve (209) is provided with a scraper (212). When the sleeve (209) rotates relative to the discharge part (202), the scraper (212) cuts the molten rubber at the discharge port (207). The sleeve (209) scrapes the radial inner wall of the discharge part (202) to prevent the molten rubber from sticking and accumulating.

2. The rubber component hot-melt crushing and recycling device according to claim 1, characterized in that, Gears (104) are mounted on the crushing shaft (101), and two gears (104) mesh with each other; Both of the aforementioned crushing shafts (101) are equipped with blades to cut the rubber raw materials.

3. A rubber component hot-melt crushing and recycling device according to claim 1 or 2, characterized in that, The discharge end of the crushing chamber (1) is rotatably equipped with a feeding shaft (105). Multiple feeding grooves (106) are spaced apart on the radial outer wall of the feeding shaft (105) to achieve uniform feeding into the hot melt chamber (2).

4. The rubber component hot-melt crushing and recycling device according to claim 3, characterized in that, The crushing chamber (1) also includes a belt (107); The belt (107) is connected to the feeding shaft (105) and one of the crushing shafts (101). And / or, the pulverizing chamber (1) also includes a control panel (108).

5. A rubber component hot-melt crushing and recycling device according to claim 1 or 2, characterized in that, The discharge section (202) is provided with an installation groove (208), and the sleeve (209) includes an installation rail (210). The sleeve (209) is rotatably disposed in the installation groove (208) via the installation rail (210). A gear ring (211) is provided on the outer wall of the sleeve (209), and the hot melt chamber (2) also includes a drive source, the output end of which is connected to the gear ring (211) in a transmission connection.

6. A rubber component hot-melt crushing and recycling device according to claim 1 or 2, characterized in that, The hot melt chamber (2) includes a motor (203), and the output end of the motor (203) is provided with a spiral shaft (204); The spiral shaft (204) includes a second shrinkage section (205), which is correspondingly arranged with the first shrinkage section (201) and is used to shape molten rubber.

7. A rubber component hot-melt crushing and recycling device according to claim 1 or 2, characterized in that, The recovery device also includes a gas transmission device (3); The air outlet of the gas conveying device (3) is located at the crushing shaft (101) and the discharge section (202) to blow the crushed rubber particles and cool the molten rubber when it is cut into shape.

8. A rubber component hot-melt crushing and recycling device according to claim 7, characterized in that, The gas transmission equipment (3) includes a first transmission pipe (301); The output end of the first delivery pipe (301) is located inside the cavity (102).

9. A rubber component hot-melt crushing and recycling device according to claim 7, characterized in that, The gas conveying device (3) includes a second conveying pipe (302), and an outlet ring cover (303) is provided at the output end of the second conveying pipe (302). An air inlet ring cover (213) is fixedly installed on the outer wall of the sleeve (209), and the air outlet end of the air inlet ring cover (213) is provided with a plurality of air outlets (216); the air outlet ends of the plurality of air outlets (216) face the discharge port (207). The air inlet end of the air inlet ring cover (213) is rotatably disposed at the air outlet end of the air outlet ring cover (303).

10. A rubber component hot-melt crushing and recycling device according to claim 9, characterized in that, The air intake ring cover (213) and the air outlet ring cover (303) are configured as annular compartment structures; The air intake ring cover (213) includes a first limiting part (214) and a second limiting part (215); the radial outer wall of the air outlet ring cover (303) is respectively rotatably disposed in the first limiting part (214) and the second limiting part (215) to improve the airtightness.

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